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December 11 , 1995 <br /> Sample Log 13504 <br /> QC Report for EPA 602 & Modified EPA 8015 <br /> From : Granite Construction (Prof . # 2088 .05) <br /> Sample(s) Received : 12/06/95 <br /> Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter Recovery Recovery RPD <br /> Benzene 97 99 2 <br /> Ethylbenzene 105 105 0 <br /> TPH as Gasoline 90 93 3 <br /> * RPD = Relative Percent Difference <br /> Parameter Method Blank <br /> Benzene <0. 30 ug/L <br /> Toluene <0 . 30 ug/L <br /> Ethylbenzene <0 . 30 ug/L <br /> Total Xylenes <0.50 ug/L <br /> TPH as Gasoline --50 ug/L <br /> 3oa Ki!! <br /> X Chsaist <br />